Update dependency web-vitals to v2.1.2

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
web-vitals	2.1.0 -> 2.1.2

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Release Notes

GoogleChrome/web-vitals

### [`v2.1.2`](https://togithub.com/GoogleChrome/web-vitals/blob/master/CHANGELOG.md#v212-2021-10-11) [Compare Source](https://togithub.com/GoogleChrome/web-vitals/compare/v2.1.1...v2.1.2) - Ensure reported TTFB values are less than the current page time ([#​187](https://togithub.com/GoogleChrome/web-vitals/pull/187)) ### [`v2.1.1`](https://togithub.com/GoogleChrome/web-vitals/blob/master/CHANGELOG.md#v211-2021-10-06) [Compare Source](https://togithub.com/GoogleChrome/web-vitals/compare/v2.1.0...v2.1.1) - Add feature detects to support Opera mini in extreme data saver mode ([#​186](https://togithub.com/GoogleChrome/web-vitals/pull/186))

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